Graining machine



Aug."l4, .1945. H. -w. MACKEY GRAINING MACHINE I Filed Jan. '19, 1942 I 4- Sheets-She et 1 v mvmv'rore. JHENRY W;MAO KEY BY ATTORNEYS Patented Aug. 14, 1945 GRAINING MACHINE Henry W. Mackey, Detroit, Mich, assignor to Motor Products Corporation, Detroit, Mich., a corporation of New York Application January 19, 1942, Seri'al No. 427,365

3 Claims. (01. 101-3235) The invention relates to graining machines and refers more particularly to machines for graining or printing on hollow work such as garnish molding foruse on automobile windows.

The invention has'for some of its objects to provide an improved graining machine so constructed that gravity has no efiect upon the work tending to move the work away from the impression roll; to provide the graining machine with a support for the impression roll which is angularly movable to accommodate work having different transverse contours; and to provide the graining machine so constructed that the table for supporting the work'is adjustably mounted to extend horizontally.

The invention has for other objects to provide the graining machine with an improved device engageable with the impression roll to change its contour to approximately conform to the,

about its pivotal axis to actuate one device and to move bodily to actuate the other device.

The invention has for a further object to provide the graining machine with an ink or printing fluid pump and a driving means therefor constructed to enable the pump to be readily'inserted into and removed from the ink or printing fluid reservoir and detachably connected to the driving means when in place.

With these as well as other objects in view, the invention resides in the novel features of construction and combinations and arrangements of parts as more fully hereinafter set forth.

In the drawings;

Figure 1 is a front elevation, partly broken away, of a graining machine embodying the invention;

Figure 2 is aside elevation partly broken away I thereof;

Figure Bis a top plan View of a portion thereof;

and Il0, respectively, of

The machine in general comprises the base I, the table 2 above the base for supporting the garnish molding W and the graining unit 3 mounted on the base and extending upwardly through an elongated opening in the table and adapted to grain or print on the transversely curved or rounded surface S1, of the garnish molding.

The base I has the laterally spaced uprights 4 carrying at their upper ends the transverse horizontally extending axially aligned gudgeons 5 and 6 on which is journaled the support 1 of the graining unit 3. The support is preferably made in one piece and has inits upper portion and toward the front of the machine the reservoir 8 for the ink or printing fluid, in its upper portion and extending transversely of and rearwardly from the upper and lower ends of the reservoir the upper and lower walls 9 and I0, respectively, and in its lower, portion the laterally spaced side walls II and the transverse wall l2 extending between the side walls attheir lower ends; The side walls'll are journaled on the gudgeons 5 and 6 so that the support is adapted to swing through a vertical path, The support, is adapted to be secured in various positions of rotative adjustment by suitable means such as the bolt l3 which extends through a holein an upright 4 and an arcuate hole in a side wall l I, the arcuate hole being concentric with the gudgeons. H t

The support 1 carries the pattern roll l4 and the transferor impression roll 15, both of which form part of the graining unit and are located above'theisupport and also extend above the table 2; The pattern roll l4 encircles and is fixedly,

secured to th upper end portion of the hollow shaft [6 which extends through the upper and lower walls 9and [0 of the support and is journaled in suitable bearings I! and I8, respectively, in the upper and lower walls. The shaft is supported by means of the collar 19 fixedly secured thereto and resting upon the upper bearing H. The transfer roll l5 encircles and is fixedly .secured to the upper end portion of the shaft 20 which extends through the upper and lower walls 9 andlll, respectively, and is journaled in the upper and lower bearings 2| and 22 carried by the upper and lower lateral extensions 23 and 24, respectively, of the swivel head 25. The shaft 20 is supported by the collar 26 fixedlysecured to the shaft and engaging the lower bearing 22. The

.swivelhead is located between the upper and lower walls9 and Ill, respectively, of thesupport and also has another set of upper andlower extensions 27 and 28 which are journaled on the pin 29 preferably non-rotatably secured in the upper and lower walls 9 and ID in a zone offset to one side of the support beyond the shaft 20. The pin extends parallel to the shaft. The swivel head is carried by the support through the lower extension 28 resting on the lower wall I and also through the upper extension 21 resting on the spacer sleeve 30 between the upper and lower extensions 21 and 28. The openings 3| and 32 in the upper and lower walls 9 and I0, respectively, provide clearance for the. shaft 20 to swing the swivel head about the pin 29? The swivel head is also form'edwiththe arm 33 in continuation of the lower extension 24" and having secured to its free end the handle 34 through which the swivel head; can be swung to move the transfer roll out of contact with the pattern roll I4. It will be noted that the handle, is at the side of the machinesoppositel the pin,29 on, which the swive head isjouriimq; 35"i's a coil spring connected to the 'arm andthe lower wall ill of the support; to resilientlyhold thetransfer roll in contact with the patternroll For the, purpose of driving the "pattern and transfer rolls,'there is the prime mover36finf the nature of an electricrnottir niounte'dYohfthe' base, [toward the rear of the machine. Theele'ctric motor through suitable gearing drivesthe driving mechanism 31 comprising thefs'prock'et' 38 carriedjby the upright ont ej ase'jthe sprocket '49 fixed upon the shaft :4! journal'ed in the gudg eon'5, and the'sprockt' chain '42 W11 nin'g over the sprockets 38 anddfl. The driving '43 fixed upon the inner end of the shaft 41 between theside walls ll of the support ,1.""The' driving mechanisznj upon, the support I 'c'omprise'sf'the bevel gearfld fixed upon the. loweiij'endpfthe' shaft Iii-and meshing with" the'bevelgea'r. 43;

mechanism also comprises the bevel; gea

wherebythe pattern roll driven Thetransfer roll '15; is driven through the sprocket "4 5 above and preferably integral with the bevel gear 4; th le p cket wh l fifjour al on 'the' pin 2-9, the sprocket chain 41 extending overth sprockets 45;and 45, the gea' 48 rabove 'and driven by the sprocket 45, and'the gear lgjfixed upo'nf' the lower end of the shaft j 20. 'It will bejnoted" that the gears, sprockets and sprocket chaino'f re all' located below the lower wall In of thefs'upport;

the driving mechanism on' thesupp'ortj."

Also; that theug'ear fixed uponjthe'shaftfcarry ingithe transferfroll mesheswith a gear coaxial with the pivot of the swiveljhea-dcarrying"the transfer roll so that the two last inentionedgears will remain constantly in mesh regardless of the position ofthe transfer roll with respect to the pattern roll,

The table 2 is adjustably'supportedjon,the base I and the sup'portTs'o that it may be maintained in horiz ontal'position and also adjusted to the proper heightso that it will support the garnish molding Wjhorizjontally and 'at the desired height to prop er ly'engagethe transfer roll. Asshown, the, table' is supported at'its rear end on the rods Eli! and 5| {telescopically engaging each other.

The rods 50 are pivOtallycOnriected at'their upper endsjto the table andtherods 5| are piv otally connected at their lower ends tq the bracket'5g forming, part of the base I. The rods 50 and 51 aref'heldintheir. relative positionsof adjustmentjhy suitable meansfsuch' as the set screw5g. The 'tahleilis als'opivota lly connected to the Lupper ma ter the pai'r lof rods 54g which slida'bl'y engage opposite sides of the upper per rne'nt, the garnish molding will be' properly grained and gravity will have no effect in tending to move the garnish molding away from the transfer roll.

For the purpose of making the transfer roll IE to approximately conform to the transverse contourofthe surface S, the transfer roll has a free upper end portion 56 extending above the upper end of its shaft 20 and its free upper end portion is adapted tobe distorted in the zone adjacent the surface S by thedev icel 5,1. Thisdevicecomprises the roller 58 journaled in the bracket 59 secured to the arm 63; shown, the armfisprovided with the longitudinally extending slotjfigl through which extends thebolt 52 usedinlclamping-the bracket tothe' arm 'Ihe construction is such that'the bracket may be adjusted: longitudinally of and. also angularly relative tofthe arm. The

arm. is fixedly secured tofthe upper. end, of the rod 63 which extendsdownwardlyfthrough the hollow shaft" lfijan'd 'thetransverselwall 12 of; the support 1a. Thered 63 has fixedly Secured to its lower end thevpla't 54;;- opposite ends o f which 2 at a distance remote from, the rodslidably, en 35' gage the longitudinally extending slots" 65in the arms 66 of a yoke, the top of which haslian arm 51 a'djustablysecured to thel'transversewall l2. As" shown, the. arm, 61 is provided with, an arouate slot fill conc'emnewah the. shaft 63; for re- 50 T e disto tin .gdevicejjiis normally held in ceiving the clampingfbolt 68 which is threaded.

into the transverse wan With this construction the nod '63 is fpos'itivelytheld from rotation by the I ends of the, plate- 64, engaging and being guided by the armsjifixata distanceremote from the. rod,

thereby faffording -comiderable "leverage. As a result, the roll 58 wi11 f be effectivelyh ld to engage the free end portion 56'ofthetr ansferro11 l 5: directly loppos'itelthegsurface 5 of; the. garnish its upper or"inoperati ve[posi tion means ot-the coil spring 10 en-circlingfthef and having its-lower. end abutting the guide bushing ll in the transverse wal1 l2= The-upper endfoflthe coil spring abuts the terminal; portion .'|2. of the link 13, the terminal portion extendi nansversely through the rod 55, The link 13 is moved downw r t ovefihe r, o e vice, 51 ew-nwardly to operative po tion by 'm ech an ism com p in he oke .l l hereekepleQ'se l, renks i me'mber'l ith'e 'rodlfi and'the fo'otpedal 71;, The yoke l l is adjustably connected at its uppe' r end to the lower end of th'e link 73 and is pivotally ;connec ted,at l8, t o one arm of'the; rockablepr bell crankelikelmeinher 15. "This member .is

pivotally mounted at 19 upon the upright 8 11pm the bas I. and its other armispivotally 00 e de' he. ee fi rislt he QQJ fixwh e ih e t front end pivotally connected to the "side plate ei het e i Pedal-t he. l eet d lir ta l mounted atfSl upon'the front end 'ofthefpar 82. The. ar: end f the her 8.23s. pive elly enne i 82-1n its uppermost-position; as deter- 86 between thebar and the base The cam, as shown, is secured to the upper end of, the upright 8'Igupon the front end of the plate 88 forming part of the base. I l -.With the construction as thus far. described, it will be seen that upon swinging the foot pedal TI about its pivot 8I in the direction of the arrow 89 in Figure 2, the rodfIB will be moved rearwardlyto rock the rockable member 15 in a clockwise direction about its pivot, which in turn moves the yoke I4 downwardly to pull thelink I3 downwardly.- This linkin turn pulls the rod B-idownwardly against the force. exerted by the coil spring 10 and the rod 63 through the arm 60 and the bracket 59 moves the roll 58intodistorting relation with. the free upper end portion of the transfer roll. I

To move the garnish molding. W into contact withthe transfer roll I 5, there is the pressure roll 90 engageable with the garnish molding and fixed upon the vertical shaft 9! which is journaled in the bracket 92. The bracket ismovable in an elongated opening in the table 2, and is angularly adjustably secured to the horn 93 by suitable means, such as-the bolt 94. The horn 93 is fixed upon the upper end of the bar 95 which is preferably of channel section and is telescopically engaged by the upper end of the bar 96 having its lower end pivotally connected at 91- to the upright 81. The upper end portion of the bar 96 is provided with the longitudinally extend ing slot 98 for receiving the bolt 99 for clamping the two bars together. With this construction, the axis of the pressure roll may be angularly adjusted and also the height of the pressure roll may be adjusted to secure proper contact of the pressure roll with the garnish molding.

The support for the pressure"ro11 is adapted to be swung about the pivot'9'l to force the garnish molding into contact with the transfer roll by means of the link I00, the rod IN, the bar 82 and the foot pedal 17. Theupper end of the link I is pivotally connected by the bolt I02 to the bar 96 and the lower end of the link I00 is pivotally connected by the pin I03 to the rear end of the rod IOI. This latter rod is pivotally connected to the upright 81 by the pivot 91. The bolt I02 extends through the longitudinally extending slot I04 in the bar96 to providefor adjustment of the pivot relative to the bar. The pin I03 extends through the longitudinally extending hole I05 in the bar 82 so that the bar 82 upon being swung downwardly by its pivot 83 compels the pin I03 to move downwardly. .During this time, the pin is moved rearwardly along the bar 82 by the rod IOI with the result that the pin pulls the lower end of the link I00 rearwardly so that the bolt I02 swings the bar 96 and its associated parts rearwardly to move the garnish molding through the pressure roll 90 into contact with the transfer roll I5. The bar 82 is swung downwardly against the resistance offered by the coil spring86 by bodily downward movement of the foot pedal 11 and the downward movement is limited by the set screw I06 adjustably threadedly engaging the plate 88 of the base.

With the construction as above described, it will be seen that upon bodily downward movement of the foot pedal the garnish molding is moved into contact with the transfer roll. It will also be seen that by swinging movement of the foot pedal about its pivot the free upper end portion of the transfer roll will be distorted by the distorting device being moved downwardly. In

guiding devicecomprises the guide member I08 preferably formed ofsheet metal and having anarcuate surfaceengageable with the interior of the free upperend portionand the bar I09, to-the free end of which the guide member I 08 isfixedly secured. This bar extends between and is pivotally connected; by the pin IIO to the furcations III upon the rod I.I2 which extends downwardly into the supporting, rod II3 fixed upon the upper wall f the support 1. The furcations III extend at opposite sides of the lug. II4 upon therod H3 and set screws 1 I5 threadedly engaging the furcations ,I II and abutting the lug H4 are adjustable to angularly position the rod H2 and the guide member carried thereby relativeto the rod I I3 to assure proper positioning of the, guide member relative to the transfer roll. H6 is a plunger slidable within the rod I I2 and resiliently urged upwardly by the coil spring II'I below the lower end of the plunger and located within a bore in the rod I I2. The plunger has at its upper end the head I I 8 which is engageable with either the lower side of the bar I09 when the device is in operative position or the end of the bar I09 when the device is in inoperative position, at which latter time the bar I09 extends upwardly above the rods I I2 and H3 and the guide member I08 is removed from the transfer roll.

H9 is a pump within the ink or printing fluid reservoir 8 for supplying ink or printing fluid to the pattern roll I4 through the pipe I20. The pump comprises the casing'I2I having the inlet opening I22 at one side and the meshing gears I23 and I24 within the casing adaptedto draw the ink or printing'fiuid through the inlet opening and to discharge same through the outlet openingin the top of the casing and communieating with the pipe I20. The pump is adapted to be driven by the drive shaft I 25 which extends through and is journaled in the portion of the lower wall I0 of the support 1 forming the bottom 'key I28 which extends diametrically through the upper end portion of the gear I23 when the pump is inserted. With this .construction, it will be seen that the pump may be readily inserted into or removed from the reservoir and its gearsmay be readily connected to or disconnected from the drive shaft. As a result, removal of the pump is facilitated to enable cleaning same or to enable replacement. The pump is suitably supported upon the bottom wall of the reservoir as by resting upon the packing for sealing the joint between the bottom wall of the reservoir and the pump shaft.

Surplus ink or printing fluid is removed from the pattern and transfer rolls by means of doctor blades I2 9 and I30, respectively, these blades being mounted on the rods I3I and I32, respectively,

bead 9 to guidetheink or-iprinting' fluid to the reservoir 8. The collar l9 on-the shaft 16- and also :thecollar. i36- fixedl'y secured to -the shaft-20 form deflectors for preventing the ink orprinting fluid' from passing downwardlyalongthe shafts; ;What I claim asmyinventionisz- 1. A graining machine comprising a pattern roll} atransfer roll,-a--support, shafts carrying saidrolls; one of said shafts being rotatably mounted on said support, a swivel-head carry-ing the other ofsaid-shafts, a pin-on-saidsupporton which: said; swivel-1 head is jour-naledand means for driving said rolls comprising a gear on said shaft rotatably mounted on said support, a sprocket on said last mentioned shaft; an idler sprocket journaled on saidpin' and driven-by said first mentioned-sprocket, a second gear on said shaft carried by said swivel-head, and athird gear meshing with said second gear and-driven by said second mentioned sprocket.

2; Inking mechanism fora graining machine comprising an ink reservoir, 8, driveshaft extending: upwardly'through a bottom wall of said ink reservoir i'ntothe latter, and an ink pump within said ink reservoir for pumping ink; said pump being insertable'downwa'rdlyintosaid ink reservoirand having a rotatable member detachably connected within saidlink reservoir to said; drive shaft;

3. Inking mechanism for a graining machine comprising a support for rolls of the graining machine having an ink reservoir and carrying driving mechanism for the rolls a drive shaft connected to the driving mechanism and extending within the ink reservoir through the bottom wallthereof, and an ink pump within said ink reservoir for pumping ink, said pump being insert- -able into-and removable from said ink reservoir through an Opening in the upper end thereof and having a rotatable member detachably connected to said drive shaft within said ink resevoir.

HENRY W. MACKEY. 

